EE2 SERIES

For Right Use of Miniature Relays
DO NOT EXCEED MAXIMUM RATINGS.
Do not use relays under exceeding conditions such as over ambient temperature, over voltage and over current. Incorrect use could result in abnormal heating, damage to related parts or cause burning. READ CAUTIONS IN THE SELECTION GUIDE.
Read the cautions described in NEC/TOKIN's "Miniature Relays" when you choose relays for your application.
Document No. 0606EMDD03VOL02E Date Published May 2005 P Printed in Japan
© NEC TOKIN Corporation 2002
Compact and lightweight, High breakdown voltage,
Surface mounting type
DESCRIPTION
The EE2 series surface-mounting type sustaining high-performance of NEC TOKIN EC2 series.
FEATURES
Compact and light weight 2 form c contact arrangement Low power consumption Reduced mounting space : 15 mm × 9.5 mm High-breakdown voltage of coil to contacts : 1500 Vac, 2500 V (rise time : 2 µs, fall time : 10 µs) Low power consumption : 100 to 140 mW
Capable of High-power switching : 700 Vac, 4.2 A, 4 times in case of accident NK type guarantee 1.5kVac over withstanding voltage at open contact. (Only make contact)
APPLICATIONS
Electronic switching systems, PBX, terminal equipment, telephone system.
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EE2 SERIES
2
PART NUMBER SYSTEM
OUTLINE DRAWINGS AND DIMENSIONS
,NKX
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PAD LAYOUTS
(bottom view)
30 Vdc, 2 A (Resistive) 110 Vdc, 0.3 A (Resistive) 125 Vac, 0.5 A (Resistive)
* Spacing : UL114, UL478 TUV Certificate (EN60255 / IEC60255)
No. R 9751153
(Nonlatch and Single-coil-latch) Creepage and clearance of coil to contact is more than 2 mm.
(According EN60950)
Basic insulation class
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4
PERFORMANCE CHARACTERISTICS
Contact Form 2 Form C
Contact Material
Silver alloy with gold alloy overlay
Maximum Switching Power 60 W, 125 VA Maximum Switching Voltage 220 Vdc, 250 Vac Maximum Switching Current 2 A Contact Ratings
Maximum Carrying Current 2 A
Minimum Contact Ratings 10 mVdc, 10 µA 1 Initial Contact Resistance
75 m Ω max. (Initial)
Nonlatch type
140 mW (3 to 12 V), 200 mW (24 V) (ND type : 200 to 230 mW) (NK type : 230 mW)
Single coil latch type 100 mW (ND type : 100 to 170 mW) Nominal Operating Power
Single coil latch type
140 mW
Operate Time (Excluding bounce) Approx. 2 ms Release Time (Excluding bounce) Approx. 1 ms
Insulation Resistance
1000 M Ω at 500 Vdc
1000 Vac (for one minute) 1500 V surge (10 × 160 µs 2) Between open Contacts
NK type :
Make contact : 1500 Vac (for one minute) 2500 V surge (2 × 10 µs 3)
Break contact : 1000 Vac (for one minute) 1500 V surge (10 × 160 µs 2)
Between Adjacent Contacts 1000 Vac (for one minute), 1500 V surge (10 × 160 µs 2) Withstanding
Between Coil to Contact 1500 Vac (for one minute), 2500 V surge, (2 × 10 µs 3)
Shock Resistance 735 m / s 2
(75G)(misoperating)
980 m / s 2
(100G)(destructive failure)
Vibration Resistance
10 to 55 Hz double amplitude 3 mm (misoperation)
10 to 55 Hz, double amplitude 5 mm (destructive failure) Ambient Temperature
40 to 85°C Coil Temperature Rise
18 degrees at nominal coil voltage (140 mW) Nonload 1 × 108 4 operations (Nonlatch type) 1 × 107
operations (latch type)
50 Vdc 0.1 A (resistive), 1 × 106
operations at 85°C, 5 Hz Running specifications
Load 10 Vdc 10 mA (resistive), 1 × 106
operations at 85°C, 2 Hz Weight
Approx. 1.9 g
1 This value is a reference value in the resistance load.
Minimum capacity changes depending on seitching frequency and environment temperature and the load. 2 rise time : 10 µs, decay time to half crest : 160 µs 3 rise time : 2 µs, decay time to half crest : 10 µs
4
This shows a number of operation where it can be running by which a fatal defect is not caused, and a number of
operation by which a steady characteristic is maintained is 1 × 107
operations.
Recommended relay drive conditions
Drive under conditions. If it is impossible, please inquire to NEC/TOKIN.
Nonlatch type Voltage: within ±5% at nominal voltage
Single coil latch type
Double coil latch type
Square pulse (rise and fall time is rapidly)
Pulse height : within ±5% at nominal voltage
Pulse width : More than 10 ms
Ambient temperature 40 to +85°C
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5
PRODUCT LINEUP
Non-latch Type
at 20°C
Nominal Coil Voltage (Vdc) Coil Resistance (Ω) ±10 % Must Operate Voltage (Vdc) Must Release Voltage (Vdc) 3 64.3 2.25 0.3 4.5 145 3.38 0.45 5 178 3.75 0.5 6 257 4.5 0.6 9 579 6.75 0.9 12 1028 9 1.2 24 2880 18 2.4
Single-Coil Latch Type at 20°C
Nominal Coil Voltage (Vdc) Coil Resistance (Ω) ±10 % Must Operate Voltage (Vdc) Must Release Voltage (Vdc) 3 90 2.25 2.25 4.5 202.5 3.38 3.38 5 250 3.75 3.75 6 360 4.5 4.5 9 810 6.75 6.75 12 1440 9 9 24 5760 18 18
Double-Coil Latch Type (Can not be driven by revese polarity for reverse operation.)
at 20°C
Nominal Coil Voltage (Vdc)
Coil Resistance (Ω) ±10 % Must Operate Voltage (Vdc) Must Release
Voltage (Vdc) S 64.3 2.25 3 R 64.3 2.25 S 145 3.38 4.5 R 145 3.38 S 178 3.75 5 R 178 3.75 S 257 4.5 6 R 257
4.5 S 579 6.75 9 R 579 6.75 S 1028 9 12 R 1028 9 S 4114 18 24
R 4114
18
Note Test by pulse voltage S : Set coil (pin No.1... +, pin No.5... - ) R : Reset coil (pin No.10... +, pin No.6... -)
The latch type relays should be initalized at appointed position before using, and should be enegized to specific polanity by a bone polabity to avoid wrong operation.
Any special coil requirement, please contact NEC/TOKIN for availability.
Nonlatch NKX type (High voltage, high solder joint reliabillity type) at 20°C
Nominal Coil Voltage (Vdc) Coil
Resistance (Ω) ±10 % Must Operate Voltage (Vdc) Must Release Voltage (Vdc) 3 39.1 2.25 0.3 4.5 88.0 3.38 0.45 12 626 9.0 1.2
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PERFORMANCE DATA
COIL TEMPERATURE RISE
Temperature is measured by coil resistance.
SWITCHING CAPACITY MAXIMUM COIL VOLTAGE
This is allowed maximum value. Inquiry for NEC/TOKIN under maximum value at continuous use.
This is maximum value of permissible alteration.
Inquiry for NEC/TOKIN at continuous use.
APPLIED VOLTAGE VS. TIMING (Sample: EE2-5NU)
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OPERATE AND RELEASE VOLTAGE VS. AMBIENT TEMPERATURE
This shows a typical change of operate (release) voltage. Maximum value of operate estimated, so it must be applied more than this value for safety operation. In case of “hot start operation”, please inquiry for NEC/TOKIN.
RUNNING TEST (Nonload)
(Load: None, Driving: 5V .DC, 50 Hz, 50% duty, Ambient temperature: Room temperature, Sample: EE2-5NU 20 pieces)
RUNNING TEST (Load)
(Load: 50 V .DC 0.1 A resistive, Driving: 5V .DC, 5 Hz, 50% duty, Ambient temperature: 85 degree C, Sample: EE2-5NU 10 pieces)
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BREAKDOWN VOLTAGE
Sample: EE2-5NU 10 pieces
ALTERNATION OF VOLTAGE AT DENSELY MOUNTING (Magnet interference)
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SOLDERING CONDITION
Note:
1. Temperature profile shows printed circuit board surface temperature on the relay terminal portion.
2. Check the actual soldering condition to use other method except above mentioned temperature profiles.
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10
TUBE PACKAGE
Dimension of Package (Unit : mm)
Outline of Package
TAPE PACKAGE
APPEARANCE TAPE DIMENSIONS
Unit : mm (inch)
Relay orientation mark and tape carrying direction.
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Notes on Correct Use
1. Notes on contact load
Make sure that the contact load is within the specified range; otherwise, the lifetime of the contacts will be shortened considerably. Note that the running performance shown is an example, and that it varies depending on parameters such as the type of load, switching frequency, driver circuit, and ambient temperature under the actual operating conditions. Evaluate the performance by using the actual circuit before using the relay. 2. Driving relays
- If the internal connection diagram of a relay shows + and - symbols on the coil, apply the rated voltage to the relay in the specified direction. If a rippled DC current source is used, abnormalities such as beat at the coil may occur.
- The maximum voltage that can be applied to the coil of the relay varies depending on the ambient temperature. Generally, the higher the voltage applied to the coil, the shorter the operating time. Note, however, that a high voltage also increases the bounce of the contacts and the contact opening and closing frequency, which may shorten the lifetime of the contacts.
- If the driving voltage waveform of the relay coil rises and falls gradually, the inherent performance of the relay may not be fully realized. Make sure that the voltage waveform instantaneously rises and falls as a pulse.
- For a latching relay, apply a voltage to the coil according to the polarity specified in the internal connection diagram of the relay. - If a current is applied to the coil over a long period of time, the coil temperature rises, promoting generation of organic gas inside the relay, which may result in faulty contacts. In this case, use of a latching relay is recommended.
- The operating time and release time indicate the time required for each contact to close after the voltage has been applied to or removed from the coil. However, because the relay has a mechanical structure, a bounce state exists at the end of the operating and release times. Furthermore, because additional time is required until the contact stabilizes after being in a high-resistance state, care must be taken when using the relay at high speeds. 3. Operating environment
- Make sure that the relay mounted in the application set is used within the specified temperature range. Use of a relay at a temperature outside this range may adversely affect insulation or contact performance.
- If the relay is used for a long period of time in highly humid (RH 85% or higher) environment, moisture may be absorbed into the relay. This moisture may react with the NOx and SOx generated by glow discharges that occur when the contacts are opened or closed,
producing nitric or sulfuric acid. If this happens, the acid produced may corrode the metallic parts of the relay, causing operational malfunction.
- Because the operating temperature range varies depending on the humidity, use the relay in the temperature range illustrated in the figure below. Prevent the relay from being frozen and avoid the generation of condensation.
- The relay maintains constant sealability under normal atmospheric pressure (810 to 1,200 hpa). Its sealability may be degraded or the relay may be deformed and malfunction if it is used under barometric conditions exceeding the specified range.
- The same applies when the relay is stored or transported. Keep the upper-limit value of the temperature to which the relay is exposed after it is removed from the carton box to within 50°C.
- If excessive vibration or shock is applied to the relay, it may malfunction and the contacts remain closed. Vibration or shock applied to the relay during operation may cause considerable damage to or wearing of the contacts. Note that operation of a snap switch mounted close to the relay or shock due to the operation of magnetic solenoid may also cause malfunctioning. 4. Notes on mounting relays
- When mounting a relay onto a PC board using an automatic chip mounter, if excessive force is applied to the cover of the relay when the relay is chucked or inserted, the cover may be damaged or the characteristics of the relay degraded. Keep the force applied to the relay to within 1 kg.
- Avoid bending the pins to temporarily secure the relay to the PC board. Bending the pins may degrade sealability or adversely affect the internal mechanism.
- It is recommended to solder the relay onto a PC board under the following conditions: <1> Reflow soldering
Refer to the recommended soldering temperature profile. <2> Flow soldering
Solder temperature: 260°C max., Time: 5 seconds max, Preheating: 100°C max./1 minute max. <3> Manual soldering
Solder temperature: 350°C, Time: 2 to 3 seconds
- Ventilation immediately after soldering is recommended.
Avoid immersing the relay in cleaning solvent immediately after soldering due to the danger of thermal shock being applied to the relay.
- Use an alcohol-based or water-based cleaning solvent. Never use thinner and benzene because they may damage the relay housing. - Do not use ultrasonic cleaning because the vibration energy generated by the ultrasonic waves may cause the contacts to remain closed. 5. Handling
- Relays are packaged in magazine cases for shipment. If a space is created in the case after some relays have been removed, be sure to insert a stopper to secure the remaining relays in the case. If relays are not well secured, vibration during transportation may cause malfunctioning of the contacts.
- Exercise care in handling the relay so as to avoid dropping it or allowing it to fall. Do not use a relay that has been dropped.
If a relay drops from a workbench to the floor, a shock of 9,800 m/s2 (1,000 G) or more is applied to the relay, possibly damaging its functions. Even if a light shock has been applied to the relay, thoroughly evaluate its operation before using it.
- Latching relays are factory-set to the reset state for shipment. A latching relay may be set, however, by vibration or shock applied while being transported. Be sure to forcibly reset the relay before using it in the application set. Also note that the relay may be set by unexpected vibration or shock when it is used in a portable set.
- The sealability of a surface-mount relay may be lost if the relay absorbs moisture and is then heated during soldering. When storing relays, therefore, observe the following points:
<1> Please use relays within 12 months after delivery. (Storage conditions : 30 degrees C / 60% RH)
<2> For MBB packing, Please use relays within 2 years after delivery.
(Stronge conditions : 30 degrees C / 60% RH)
After opening MBB packing, Please use within 3 months. (Storage conditions : 30 degrees C/ 60% RH)
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No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC/TOKIN Corporation. NEC/TOKIN Corporation assumes no responsibility for any errors which may appear in this document.
NEC/TOKIN Corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. No license, either express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC/TOKIN Corporation or others. While NEC/TOKIN Corporation has been making continuous effort to enhance the reliability of its electronic components, the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or property arising from a defect in an NEC/TOKIN electronic component, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features. NEC/TOKIN devices are classified into the following three quality grades:
"Standard", "Special", and "Specific". The Specific quality grade applies only to devices developed based on a customer designated "quality assurance program" for a specific application. The recommended applications of a device depend on its quality grade, as indicated below. Customers must check the quality grade of each device before using it in a particular application.
Standard: Computers, office equipment, communications equipment, test and measurement equipment,
audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots
Special:
Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster
systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support)
Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life
support systems or medical equipment for life support, etc.
The quality grade of NEC/TOKIN devices is "Standard" unless otherwise specified in NEC/TOKIN's Data Sheets or Data Books. If customers intend to use NEC/TOKIN devices for applications other than those specified for Standard quality grade, they should contact an NEC/TOKIN sales representative in advance.
(Note)
(1) "NEC/TOKIN" as used in this statement means NEC/TOKIN Corporation and also includes its
majorityowned subsidiaries.
(2) "NEC/TOKIN electronic component products" means any electronic component product developed or
manufactured by or for NEC/TOKIN (as defined above).
DE0202
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